My childhood friend Yui. - I've always been interested in naughty things... - I can't stop masturbating every day... I can't stop being frustrated... That's my childhood friend. - Before we knew it, we were in a sexual relationship... - At school, at home, at the park...she asks for my dick no matter where. - If you don't study and just have sex, you'll barely get a red mark on the test. - If this continues, I will be expelled from school! - After prohibiting sex for two weeks and studying hard, I avoided the red mark... - Both of us are frustrated and our sexual desires are about to explode... - Today I decided to just have sex at a love hotel...